Features: 1. Double signal switch at will, receive RX transmit TX signal as one, suitable for multiple devices. 2. Computer connect bluetooth headphone, solve the problem that the TV cannot connect bluetooth headphone, not afraid to disturb the family. 3. Computer connect bluetooth speaker, listening to music wirelessly, let the sound more clear. 4. Bluetooth 4.2 version, high quality music restore, at the same time in the complex interference environment is not easy to disconnect the signal. 5. Delicate and compact appearance, PVC shell, high temperature resistance and durable, easy to carry. 6. Using while charging, built-in power isolation module, not heat, Micro USB charging port design. 7. Built-in antenna, 10 meters barrier-free transmission, without blind angle connection. Specification: Condition: 100% Brand New Item Type: Bluetooth Receiver Transmitter Material: PVC Shell Color: Black BT Type: BT 4.2 Battery Capacity: 3.7V/500MAH SNR: ＞90db Transmission Distance: About 10m Size: Approx. 7.5x7.5x1.5cm/2.95x2.95x0.59inch Package List: 1 x Receiver 1 x Manual 1 x Audio Cable 1 x Data Cable 1 x AV Cable 1、Double signal switch at will, receive RX transmit TX signal as one, suitable for multiple devices. 2、Computer connect bluetooth headphone, solve the problem that the TV cannot connect bluetooth headphone, not afraid to disturb the family. 3、Computer connect bluetooth speaker, listening to music wirelessly, let the sound more clear. 4、Bluetooth 4.2 version, high quality music restore, at the same time in the complex interference environment is not easy to disconnect the signal. 5、Delicate and compact appearance, PVC shell, high temperature resistance and durable, easy to carry.